<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
setTimeout(function() {
var margin_top;
margin_top = $(document).scrollTop();
alert(margin_top);
}, 1000);
});
</script>
</head>
<body>
<div style="height: 2500px;"></div>
</body>
</html>
Всё работает
